import 'package:flutter/material.dart';
import 'demo_04/keep_alive_demo.dart';

void main() => runApp(MyApp());

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() {
    return _MyAppState();
  }
}

class _MyAppState extends State<MyApp> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("flutter"),
      ),
      body: KeepAliveDemo(),
    );
  }
}
